noun Etymology: New Latin Cycadeoidales, group name, ultimately from Cycad-, Cycas Date: 1860 any of a division (Cycadeoidophyta syn. Bennettitophyta) of extinct Jurassic to Cretaceous gymnosperms that differ from the cycadophytes chiefly in having the reproductive organs on the trunk embedded in a thick external covering of bracts and scales

New Collegiate Dictionary. 2001.

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  • cycadeoid —   Any of several extinct cycadophytes resembling a cycad in morphology but differing in the arrangement of the sporophylls; a member of the Order Bennettitales, Class Cycadeoideae …   Expanded glossary of Cycad terms

  • cycadeoid — cy·cad·e·oid …   English syllables

  • cycadeoid — sīˈkadēˌȯid, sə̇ˈ adjective Etymology: New Latin Cycadeoidea : resembling or related to a cycad or a plant of the fossil genus Cycadeoidea …   Useful english dictionary

  • cycadophyte — ▪ plant Introduction       any member of a diverse collection of mostly extinct primitive gymnospermous plants. They probably had their origins among the progymnosperms of the Devonian Period (416 to 359 million years ago), possibly among a… …   Universalium

  • Bennettitales — Temporal range: Triassic to Cretaceous …   Wikipedia

  • Cycadeoidophyta — ▪ gymnosperm division also called  Bennettitophyta        an extinct division of plants with certain features in common with cycads (division Pinophyta) and grouped with them and the seed ferns (division Pteridospermophyta). Both the cycadeoids… …   Universalium

  • Bennettitales —   Order of extinct cycadophytes resembling cycads in morphology but differing in the arrangement of the sporophylls.   See also cycadeoid …   Expanded glossary of Cycad terms

  • Cycadeoideae —   Class of plants in the Order Bennettitales that resemble cycads. See cycadeoid …   Expanded glossary of Cycad terms

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